powerpc: add fsl,fifo-depth property to Freescale SSI device nodes

[linux-block.git] / Documentation / powerpc / dts-bindings / fsl / ssi.txt

diff --git a/Documentation/powerpc/dts-bindings/fsl/ssi.txt b/Documentation/powerpc/dts-bindings/fsl/ssi.txt
index a2d963998a654ab5042d67b24130dbf33dc12f71..731332288931b37f16f9912424928459aa849db5 100644 (file)
--- a/Documentation/powerpc/dts-bindings/fsl/ssi.txt
+++ b/Documentation/powerpc/dts-bindings/fsl/ssi.txt
@@ -30,6 +30,8 @@ Required properties:
 - fsl,capture-dma:  phandle to a node for the DMA channel to use for
                     capture (recording) of audio.  This is typically dictated
                     by SOC design.  See the notes below.
+- fsl,fifo-depth:   the number of elements in the transmit and receive FIFOs.
+                    This number is the maximum allowed value for SFCSR[TFWM0].
 
 Optional properties:
 - codec-handle   : phandle to a 'codec' node that defines an audio